Hello, i have an issue with my W210 E300d with 722.4 transmission, it does not upshift, it just stays in first gear not matter what rpm. I already tried changing oil and filter (not forbidden glitter inside oil pan) but it did not help.

I noticed that throttle linkage with control pressure cable (i hope it's called like that, this is what i found while searching various forums) is not in sync, when throttle is applied control pressure cable does not tighten, is it supposed to work like that?
I didn't find a picture online of how it is supposed to work/look like:

This is my video where you can clearly see that when throttle is applied control pressure cable gets looser not tighter:
https://youtu.be/yRXAzGvD6o8

And this is the video i found of throttle linkage where it is visible how applying the throttle tightens the control pressure cable:
https://youtu.be/rif_qO3kJBQ?t=247

Any help is appreciated